EXC_BAD_ACCESS检索NSData

Question

在我的应用程序中，我使用相机和照片库获取UIImage ...选择图像后，我需要将其转换为NSData，并希望将此数据传递给名为addBlobToContainer：....的方法，但它提供了EXC_BAD_ACCESS ....我该如何解决？

这是我的照片库代码...

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    image.image = [info objectForKey:@"UIImagePickerControllerEditedImage"];
    imageData = [NSData dataWithData:UIImageJPEGRepresentation(image.image,1)];
    guid = [Guid randomGuid];
    NSLog(@"%@", guid.description);
    GUID = guid.description;
    NSLog(@"GUID===%@",GUID);
    [self dismissViewControllerAnimated:YES completion:nil];
}

-(void)viewWillAppear:(BOOL)animated
{
     NSLog(@"STRIMAGEDATA===%@",imageData);

     if ([imageData length] != 0)
    {
        NSLog(@"%@",imageData);
       [client addBlobToContainer:newcontainer blobName:GUID contentData:imageData contentType:@"application/octet-stream" withBlock:^(NSError *error)
       {
            if (error)
            {
            NSLog(@"%@",[error localizedDescription]);
            }
              else
              {
              NSLog(@"blob inserted suuccessfully…");
              imageURL = [serviceURL stringByAppendingString:[NSString stringWithFormat:@"%@.jpg",GUID]];
              NSLog(@"IMAGEURL=%@",imageURL);
              }
          }];-->EXC_BAD_ACCESS
    }
}

Answer 1

您不是在访问属性，而是在访问属性后面的变量。 如果希望数据由属性自动保留，请使用属性设置器，例如self.imageData = ...而不是imageData = ...

Answer 2

尝试

self.imageData = UIImageJPEGRepresentation（image.image，1）;